Mathematics - 12 September 2007

options for a):2014,2024,2036,2032
options for b):2008,2009,2011,2013

2007-09-12 04:22:46 · 3 answers · asked by ʞzɹәႨnɹ 2

I can't believe I'm asking this. It should be an easy one.

2007-09-12 04:10:41 · 13 answers · asked by Anonymous

i am doing microbiology and it has been a while since i did math and I need to know what toy do

2007-09-12 03:51:37 · 3 answers · asked by shorty 1

If y = (x−4)/(12 x−4)

find dy/dx

show all working out
thanks

2007-09-12 03:48:34 · 7 answers · asked by Anonymous

(3^2)^-1
^ - means raised to
Show me how to do it with that -1

2007-09-12 03:46:56 · 3 answers · asked by dragoi_stefan06 2

Solve the nonlinear ineqality. Express the solution using interval notation.

a) (x+2) (x-1) (x-3) < = 0

b) 1/x+1 + 1/x+2 < = 0

2007-09-12 03:46:35 · 2 answers · asked by alexo 4

Two fishing boats depart a harbour at the same time, one traveling east, the other south. The eastbound boat travels at a speed 3 mi/h faster than the southbound boat.
After two hours the boats are 30 mi apart from each other
Find the speed of the southbound boat.

2007-09-12 03:40:31 · 2 answers · asked by alexo 4

(6x {raised}3-8x{raised}2-14x+13) divided by (3x+2)

2007-09-12 03:32:47 · 2 answers · asked by countess_von_katz 2

According to the Wall Street Journal, 14,200,000 videotape copies of Walt Disney's Fantasia have been sold to date. Write that number in scientific notation

A. 142 x 1,000,000
B. 1.42 x 106

C. 1.42 x 107

D. 142 x 107

2007-09-12 03:27:29 · 9 answers · asked by kelly 1

f(x)=x^2-4 -2
explain your working please or just list out the steps.

pre-calculas sucks...i hate it

2007-09-12 03:26:43 · 4 answers · asked by Anonymous

how do you determine if these inequalities are true? i know how to look and tell but not solving.
3 is greater than equals to -5 (which is true) but how can you show that it is true?

2007-09-12 03:20:30 · 4 answers · asked by petite fille 2

Hi, Just need a hand solving these any help would be great. showing working out will get the best answer.
Thanks

1)
lim cos( 7 n^−1 ) =
n → 0+

2)
lim cos( π n) =
n → ∞

3)
lim tan(π/n)
n → ∞

2007-09-12 03:12:55 · 3 answers · asked by Anonymous

2007-09-12 03:07:10 · 11 answers · asked by redbone001 1

2007-09-12 02:56:43 · 4 answers · asked by challenged 1

show how to get the answer

2007-09-12 02:44:01 · 5 answers · asked by Harley 1

a liquid is poured on a flat surface. it forms a circular patch which grows at a steady rate of 5cm2/s. find, in terms of pi, the rate of change of the radius after 20s.

pls show the steps

2007-09-12 02:30:56 · 2 answers · asked by Anonymous

2007-09-12 02:30:08 · 1 answers · asked by adrian s 1

I need help how to do this quadratic equation. I need step by step information to make sure that I under the problem.

Thanks

2007-09-12 02:11:28 · 10 answers · asked by Anonymous

What is:
lim x->0+ x^x

That question has been posted on here before but the solution-

x^x = e^(xln(x)) = 1

does not explain how to get to that point. I was wondering if someone could show me the steps. This is what I have so far...
1. y = x^x
2. ln(y) = xln(x)
3. ln (y) = ln(x)/ (1/x)
4. confused

Any ideas? Thanks.

2007-09-12 01:53:22 · 5 answers · asked by zissoudo 1

I just need a book, but my friend refuses to let me sue it for an hour or two. I need to do this packet so I can get out of the dummy class I am in. It's been 4 years since I had Alg I, I am now in 10th grade. D: These are just literal equations and some other things.

If you know any of these answers, please help me. Please explain work!

V= 1/3hb || For B

V= pir^2h [pi = pie, I can't find the text symble, It's pie times r^2] || For h

M= x(1 + y) || for y

---

Sove the compound Inequalities

-5x < 40 and 4(x - 3) < -8

-3x + 2 > 11 or 5(x - 2) < 0

14 - 3x <_ or 5 - 4x _> 12

1/3x + 2 > 3 and -3x > 12

Absolute Inequalites

|10x + 2| - 18 = -12

|3x + 6| > 15

|5x + 2| < 7

|7 - 6x| <_ -4

|1/3x + 2| - 8 > -3

Thank you so much!

2007-09-12 01:48:17 · 1 answers · asked by April M 1

a curve has the equation y=2x^3-5x+q, where q is a constant.
(i) if the tangent to the curve at the point where x=1 has y=intercept equal to 7, find the value of q.
(ii) find the equations of the normal to the curve which are parallel to the line x+y+5=0

pls show the steps

2007-09-12 01:48:07 · 3 answers · asked by Anonymous

mx +ny = -11 3mx + 4ny = 30
2mx - 3ny = 8 2mx - 5ny = 20

2007-09-12 01:47:01 · 2 answers · asked by Anonymous

I got -100 .if this is wrong what is the proper procedure for solving

2007-09-12 01:46:44 · 6 answers · asked by Anonymous

2007-09-12 01:16:38 · 3 answers · asked by Anonymous

dy/dx = 2/5.sin(2x).e^cos x .y^2 (y>0)

y = 1 when x = 0.

giving the solution in explicit form.

2007-09-12 01:16:12 · 5 answers · asked by Niall R 1

what is the mathematics beyond constructing rockets for nasa?

2007-09-12 01:12:50 · 5 answers · asked by andz 1

f(x^n) -( x^3)f(x)= 2[(x^3) - 1]

2007-09-12 01:11:20 · 3 answers · asked by Anonymous

2007-09-12 00:59:09 · 2 answers · asked by Akilesh - Internet Undertaker 7

2007-09-12 00:05:43 · 4 answers · asked by mhymhymhymhymhymhymhy 2

with solutions

2007-09-12 00:02:24 · 11 answers · asked by mhymhymhymhymhymhymhy 2